llvm-6502/test/CodeGen/PowerPC/iabs.ll
Chris Lattner 603572a771 new testcases for integer abs function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35880 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 05:02:57 +00:00

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LLVM

; RUN: llvm-as < %s | llc -march=ppc32 -stats 2>&1 | grep '4 .*Number of machine instrs printed'
;; Integer absolute value, should produce something as good as:
;; srawi r2, r3, 31
;; add r3, r3, r2
;; xor r3, r3, r2
;; blr
define i32 @test(i32 %a) {
%tmp1neg = sub i32 0, %a
%b = icmp sgt i32 %a, -1
%abs = select i1 %b, i32 %a, i32 %tmp1neg
ret i32 %abs
}